If you are having problems with insomnia because of the stress of your upcoming boards, I would recommend reading it.
Seriously, it would be very,very low-yield. I did very well on Dental Anatomy and Occlusion. I read about ten pages of that book before I drifted off to sleep and never picked it up again.
"Dr. Okeson seems a bit pompous because he insists on quoting himself in the third person at the beginning of each chapter." -ou_jay